Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
권호 표지
DOI QR코드

DOI QR Code

Fabrication and characteristics of limit-current type oxygen sensor with monolith aperture structure

일체화된 Aperture 구조의 한계전류형 산소센서의 제작 및 특성

  • Oh, Young-Jei (Thin Film Materials Research Lab., Korea Institute of Science and Technology) ;
  • Lee, Deuk Yong (Dept. of Materials Engineering, Daelim College of Technology)
  • 오영제 (한국과학기술연구원, 박막재료연구센터) ;
  • 이득용 (대림대학 재료정보학과()
  • Published : 2008.07.31
Download PDF
⟨ Previous Next ⟩

Abstract

Monolith aperture-type oxygen sensors with simple structure of YSZ(pin-hole)/Pt/ YSZ(solid electrolyte)/Pt were fabricated by co-firing technique. To enhance the yield of productivity, a couple of YSZ green sheets for diffused barrier and solid electrolyte were prepared by tape-casting and co-firing method. The limit current characteristics of the oxygen sensors were measured between 500 and $650^{\circ}C$ The heating temperature of $600^{\circ}C$ was optimum as a portable oxygen sensor in the range of oxygen concentration from 0 to 75 vol%. Linear proficiency of limit current behavior as a function of oxygen concentration was controlled by the variation of aperture dimension. The fabricated oxygen sensors showed the stable sensing output for 30 days. Gas leakage in bonding area due to warping, cracking and thermal cycling was not found in the period.

Keywords

References

  1. T. Usui and A. Asada, 'Operating temperature of a limit current oxygen sensor using a zirconia electrolytes', Advances in Ceramics, American Ceramic Society Inc., vol. 24, pp. 845-853, 1989
  2. W.C. Maskell and B.C.H. Steele, 'Miniature amperometric oxygen pump gage', Solid State Ionics, vol. 28-30, pp. 1677-81, 1988 https://doi.org/10.1016/0167-2738(88)90441-9
  3. T. Takeuchi, 'Oxygen sensors', Proc. of the 2nd Int. meeting on chemical sensors, France, pp. 69-78, 1986
  4. S. Oh, 'A planar-type sensor for detection of oxidizing and reducing gases', Sens. Actuators B, vol. 20, pp. 33-41, 1994 https://doi.org/10.1016/0925-4005(93)01167-3
  5. J. Lee, B. Kim, K. Lee, H. Kim, and K. Han, 'A new catalyst monitoring sensor for gasoline engine using YSZ-Al2O3 as solid electrolyte and gas diffusion barrier', Sens. Actuators B, vol. 59, pp. 9-15, 1999 https://doi.org/10.1016/S0925-4005(99)00008-8
  6. B. Kim, J. Lee, and J. Kim, 'A wide range air-fuel ratio sensor with a plate-type structure', Solid State Ionics, vol. 86-88, pp. 1079-1085, 1996 https://doi.org/10.1016/0167-2738(96)00265-2
  7. Y.C. Yang and C.O. Park, 'Oxygen sensor for the low temperature-measurement using yttria stabilized zirconia (YSZ) electrolyte and Ag electrode', J. Kor. Sensors Soc., vol. 15, no. 2, pp. 97-101, 2006 https://doi.org/10.5369/JSST.2006.15.2.097
  8. J. Park, K. Park, and C.O. Park, 'Potentiometric NOx sensors for automotive exhaust using YSZ (yttria stabilizes zirconia) electrolyte', J. Kor. Sensors Soc., vol. 16, no. 6, pp. 434-440, 2007 https://doi.org/10.5369/JSST.2007.16.6.434
  9. J. Park, B.Y. Yoon, and C.O. Park, 'The development of new oxide materials and modified mixed potential sensing method for highly sensitive NOx sensor,' J. Kor. Sensors Soc., vol. 17, no. 1, pp. 61- 68, 2008 https://doi.org/10.5369/JSST.2008.17.1.061
  10. L. Heyne, H. Degn, I. Balslev, and R. Break, 'In measurement of oxygen', North-Holland Pub. Co., pp. 65, 1976
  11. D. Yuan and F.A. Kröger, 'Stabilized zirconia as an oxygen pump', J. Eletrochem. Soc., vol. 116, no. 5, pp. 594-600, 1969 https://doi.org/10.1149/1.2411972
  12. Y.-J. Oh et al., Japan Patent, no. 3,118,720, 2001